A force reflection system is described. The assembly includes a bracket for securing to the a non-rotating portion of an automobile wheel and a light emitting diode or diode array operationally connected to the bracket. The disposal portion is generally configured to sort waste items into a plurality of containers according to applicable rules and regulations governing the handling andor disposal of such items. The playback device is configured to process the data received from the reader over the wireless communications link, retrieve audio and video data associated with the data received from the reader, and display the video data and play the audio data on the playback device. The provision of such flexure means in the series of longitudinal struts leads to a very desirable balance of lateral flexibility of the unexpanded stent and radial rigidity of the expanded stent. The method is of particular utility in making calcipotriene.